Pipe-disassembly-free internal pressure type filtering water purifier

Abstract

The utility model discloses a pipe dismounting-free internal pressure type filtering water purifier, which comprises a shell, a shell cover, a connecting piece and a filtering assembly, the shell is provided with a raw water port, a purified water port and a drain outlet, the filtering assembly is arranged in the shell, and the filtering assembly comprises a filter element, a flow guide pipe, a filter element cover and a perforated handle. The filter element cover is provided with a filter element cover raw water port and a filter element cover drain outlet, the raw water port of the shell and the filter element cover raw water port are communicated and sealed, and the drain outlet of the shell and the filter element cover drain outlet are communicated and sealed. By means of the structure, when the filtering assembly is replaced or the internal condition of the water purifier is checked, the raw water opening, the water purifying opening pipe and the sewage draining opening pipeline do not need to be disassembled, and the filtering assembly is convenient to assemble and take out on the premise that other tools and raw water pressure assistance are not needed; and the device has the characteristics of simple and reasonable structure, convenience in operation, time saving and labor saving, can meet the requirements of users, is beneficial to popularization, and has high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, in particular to an internal pressure type filtering water purifier without pipe disassembly. Background Art

[0002] Known water purifiers, also called water purification machines and water quality purifiers, are water treatment devices that deeply filter and purify water quality according to the usage requirements of water. Among those on the market, the more commonly used ones are internal pressure type filtering water purifiers. The existing internal pressure type filtering water purifiers on the market generally mainly include a housing, a housing cover, a filtering component and a fixing frame. For the connection between the housing and the housing cover, the connection between the housing (including the housing cover) and the pipes (raw water inlet pipe, purified water outlet pipe and sewage outlet pipe), and the connection between the housing (including the housing cover) and the filtering component, there are mainly the following several methods:

[0003] First, the structure of screw flange connection - there are pipe interfaces (raw water inlet, or purified water outlet or sewage outlet) on the housing covers on both sides of the housing. When it is necessary to replace the filtering component or check the internal situation, it is necessary to disassemble and reinstall the pipes (raw water inlet pipe, purified water outlet pipe and sewage outlet pipe) connected to the water purifier. This is time-consuming and laborious and extremely inconvenient; there are a large number of screws at both ends of the water purifier, and the installation and disassembly are time-consuming and laborious, and the operation is also extremely inconvenient; the sealing ring is in close contact with the inner wall of the housing, and it is inconvenient to take out the filtering component. It is necessary to rely on or utilize the water pressure of tap water to take out the filtering component. If the tap water pressure at the installation site of the water purifier is low, tools or a booster pump are also needed to take out the filtering component. The above operations have high requirements for the installation, disassembly and maintenance skills of the water purifier.

[0004] Second, the structure of crescent-shaped retaining piece connection - there are pipe interfaces (raw water inlet, or purified water outlet or sewage outlet) on the housing covers on both sides of the housing. When it is necessary to replace the filtering component or check the internal situation, it is necessary to disassemble and reinstall the pipes (raw water inlet pipe, purified water outlet pipe and sewage outlet pipe) connected to the water purifier. This is time-consuming and laborious and extremely inconvenient; there are two crescent-shaped retaining pieces at each end of the water purifier (a total of four pieces for the whole machine), inner hexagon screws and the whole machine support are fixed. When installing, disassembling or checking the internal situation, it is necessary to disassemble the inner hexagon screws, crescent-shaped retaining pieces and the whole machine supports at both ends. This operation is time-consuming and laborious and extremely inconvenient; the sealing ring is in close contact with the inner wall of the housing, and it is inconvenient to take out the filtering component. It is necessary to rely on or utilize the water pressure of tap water to take out the filtering component. If the tap water pressure at the installation site of the water purifier is low, tools or a booster pump are also needed to take out the filtering component. The above operations have high requirements for the installation, disassembly and maintenance skills of the water purifier.

[0005] In the first structure of the third type of clamp connection, there are pipe interfaces (raw water inlet, purified water outlet, or sewage outlet) on the upper surfaces of the shell covers on both sides of the shell. When replacing the filter component or inspecting the internal situation, it is necessary to disassemble and reinstall the pipes (raw water inlet pipe, purified water outlet pipe, sewage outlet pipe) connected to the water purifier, which is time-consuming and laborious and extremely inconvenient; there are two clamps at each end of the water purifier. When installing, disassembling, or inspecting the internal situation, the two ends of the filter component are tightly connected to the two shell covers by a sealing ring. The frictional resistance between the sealing ring and the shell cover is very large. It is time-consuming and laborious to install the filter component, and tools (such as a flat-head screwdriver) are needed to assist in prying and pulling out the filter component. The operation is time-consuming and laborious and extremely inconvenient. When using tools, it is easy to damage the sealing ring and plastic parts.

[0006] In summary, for the existing internal pressure type filter water purifier, it is time-consuming and laborious to install and disassemble, extremely inconvenient to operate and use, and has high requirements for installation and disassembly skills. Therefore, it is necessary to improve the existing technology. Summary of the Utility Model

[0007] (1) Technical problems to be solved

[0008] Aiming at the deficiencies in the prior art, the present utility model provides an internal pressure type filter water purifier with pipe-free disassembly. Firstly, it can achieve the purpose of not disassembling the raw water inlet, purified water outlet, and sewage outlet pipes when replacing the filter component or inspecting the internal situation of the water purifier. Secondly, on the premise of not requiring other tool assistance and raw water pressure assistance, it is convenient to install and remove the filter component. Thirdly, on the basis of maintaining a simple and reasonable structure, it has low requirements for disassembly, installation, and maintenance skills, is fast and convenient to operate, time-saving and labor-saving, can meet the needs of users, is conducive to promotion, and has high practical value.

[0009] (2) Technical solutions to be adopted

[0010] In order to achieve the above object, the technical solution adopted by the present utility model is:

[0011] An internal pressure type filter water purifier with pipe-free disassembly, including a shell and a shell cover provided at one end of the shell, and the shell and the shell cover are connected together through a connecting member. A filter component is provided inside the shell. A raw water inlet, a purified water outlet, and a sewage outlet are provided on the shell at the end far from the shell cover, and the purified water outlet, the raw water inlet, and the sewage outlet are communicated with the filter component.

[0012] Preferably, the filtering component includes a filter element, a diversion pipe, a perforated handle, and a filter element cover. A filter element is arranged inside the housing. A diversion pipe is fixed inside the filter element. A perforated handle is fixed on the diversion pipe near one end of the housing cover. A filter element cover is fixed on the filter element at the other end away from the housing cover. A filter element cover sewage outlet and a filter element cover raw water inlet are arranged on the filter element cover. The filter element cover sewage outlet and the filter element cover raw water inlet on the filter element cover form a concentric circular pipe structure. One end of the filter element is fixedly provided with a filter element head A. The perforated handle is arranged on the diversion pipe at one end of the filter element near the filter element head A. The other end of the filter element is fixedly provided with a filter element head B. The filter element cover is arranged on the filter element head B.

[0013] Preferably, a diversion pipe water inlet is arranged on the diversion pipe near one side of the filter element cover raw water inlet. The diversion pipe water inlet is connected to the filter element cover raw water inlet. A diversion pipe water outlet is arranged on the diversion pipe near one side of the perforated handle. The diversion pipe water outlet is connected to the perforated handle.

[0014] Preferably, the diversion pipe is arranged in the middle of the filter element, and the diversion pipe is tightly fixed to the filter element head A and the filter element head B respectively.

[0015] Preferably, a plurality of filter element raw water inlets are arranged at one end of the filter element, a plurality of filter element sewage outlets are arranged at the other end of the filter element, and a plurality of filter element purified water outlets are arranged on the outer surface of the filter element.

[0016] Preferably, the filter element raw water inlet is provided with a plurality of inflow perforations for water to flow in. There is a certain distance between the filter element raw water inlet and the housing cover. The filter element sewage outlet is provided with a plurality of outflow perforations for water to flow out. There is a certain distance between the filter element sewage outlet and the filter element cover (reference dimension: 30 - 300 mm).

[0017] Preferably, a horn guiding head A is arranged at the assembly part of the sewage outlet on the housing and the filter element.

[0018] Preferably, the diversion pipe is fixed inside the filter element. Both ends of the diversion pipe are in an open state, and both ends of the diversion pipe extend a certain length of dimension distance (reference dimension: 30 - 300 mm) beyond both ends of the filter element.

[0019] Preferably, the filter element cover is a concentric different-flow pipe structure. The filter element cover raw water inlet and the filter element cover sewage outlet are in a concentric circular structure, realizing the concentration of these two water circuits inside the filter element cover and achieving mutual isolation and sealing without water cross-flow.

[0020] Preferably, a circular convex ring is provided on the filter element head A, the circular convex ring is located between the housing and the housing cover, and the outer diameter of the circular convex ring is larger than the outer diameter of the housing.

[0021] Preferably, a sealing ring C is provided on the circular convex ring.

[0022] Preferably, the diversion pipe at one end of the filter element head A is connected to the perforated handle, and the diversion pipe at one end of the filter element head B is hermetically connected to the original water inlet of the filter element cover.

[0023] Preferably, the filter element cover is tightly assembled and fixedly sealed with the filter element head B.

[0024] Preferably, the water inlet of the diversion pipe is connected and hermetically connected to the original water inlet of the filter element cover.

[0025] Preferably, the water outlet of the diversion pipe is connected to the perforated handle and firmly fixed.

[0026] Preferably, a convex step ring is provided at the inner edge of the opening at one end of the housing near the housing cover.

[0027] Preferably, the filter element is an ultrafiltration membrane, and the ultrafiltration membrane can adopt a PVC internal pressure ultrafiltration membrane.

[0028] Preferably, the sewage outlet of the filter element cover is communicated with the sewage outlet on the housing, and the sewage outlet of the filter element cover and the sewage outlet are hermetically connected through a sealing ring B, while the original water inlet of the filter element cover is communicated with the original water inlet on the housing, and the original water inlet of the filter element cover and the original water inlet are hermetically connected through a sealing ring A.

[0029] Preferably, there is a gap between the filter element head B and the housing, and the filter element cover is tightly assembled and fixedly sealed with the filter element head B.

[0030] Preferably, the outer diameter dimensions of the sealing ring A at the original water inlet of the filter element cover and the sealing ring B at the sewage outlet of the filter element cover are much smaller than the outer diameter dimension of the sealing ring C (the reference outer diameter dimension ratio is: the outer diameter dimensions of the sealing ring A and the sealing ring B are 15-30% of the outer diameter dimension of the sealing ring C).

[0031] Preferably, the connecting piece is a clamp.

[0032] Preferably, a fixing frame for supporting the housing is provided on the housing.

[0033] Preferably, a water purification valve is installed on the connecting pipe of the water purification port, a raw water valve is installed on the connecting pipe of the raw water port, and a sewage valve is installed on the connecting pipe of the sewage port.

[0034] Preferably, the alternative for the sewage outlet is as follows: the filter element cover has a structure of the same cavity with different flow pipelines. The filter element cover is provided with a raw water inlet of the filter element and a sewage outlet of the filter element. The sewage outlet of the filter element cover is on the side of the raw water inlet of the filter element (non-concentric circle structure), and there is an appropriate dimensional distance between the sewage outlet of the filter element cover and the raw water inlet of the filter element. Correspondingly, the sewage outlet on the outer shell is on the side of the raw water inlet (non-concentric circle structure), and there is an appropriate dimensional distance between the sewage outlet and the raw water inlet. This setting makes the raw water inlet of the filter element cover and the sewage outlet of the filter element cover isolated from each other without water mixing. The raw water inlet of the filter element cover and the sewage outlet of the filter element cover have a structure of "the same cavity with different flow pipelines", realizing that one part can have multiple different water flow functions at the same time.

[0035] (III) Desirable effects to be achieved

[0036] Advantages of the present utility model:

[0037] First, the outer shell and the outer shell cover of the present utility model are connected together through a connecting piece. A filtering component is arranged inside the outer shell. A raw water inlet, a purified water outlet and a sewage outlet are arranged on the outer shell at the end far from the outer shell cover. The purified water outlet, the raw water inlet and the sewage outlet are communicated with the filtering component. This structure can achieve that when replacing the filtering component or checking the internal situation of the water purifier, there is no need to disassemble the pipelines of the raw water inlet, the purified water outlet and the sewage outlet.

[0038] Second, the outer shell and the outer shell cover of the present utility model are connected together through a connecting piece. A filtering component is arranged inside the outer shell. A raw water inlet, a purified water outlet and a sewage outlet are arranged on the outer shell at the end far from the outer shell cover. The purified water outlet, the raw water inlet and the sewage outlet are communicated with the filtering component. This structure can achieve that the filtering component can be conveniently installed and taken out without the assistance of other tools and the assistance of the raw water water pressure.

[0039] Third, the overall structure of the present utility model is simple and reasonable, the operation is convenient and fast, time-saving and labor-saving, which can meet the needs of users, is conducive to promotion, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0041] Figure 2 It is a schematic diagram of the overall front view structure of the present utility model.

[0042] Figure 3 It is a schematic diagram of the overall left view structure of the present utility model.

[0043] Figure 4 It is a schematic diagram of the overall right view structure of the present utility model.

[0044] Figure 5 It is a schematic diagram of the sectional structure of the present utility model.

[0045] Figure 6 Structural schematic diagram of the filter element cover of the present utility model

[0046] Figure 7 Structural schematic diagram of the filter element and the diversion pipe of the present utility model

[0047] Figure 8 Structural schematic diagram of the filter assembly of the present utility model Figure 1 。

[0048] Figure 9 Structural schematic diagram of the filter assembly of the present utility model Figure 2 。

[0049] Figure 10 Structural schematic diagram of the filter assembly of the present utility model Figure 3 。

[0050] Figure 11 Explosion schematic diagram of the present utility model.

[0051] Figure 12 Schematic diagram of the water flow direction during water production of the present utility model.

[0052] Figure 13 Schematic diagram of the water flow direction during sewage flushing and discharging of the present utility model.

[0053] Figure 14 Schematic diagram of the cross-sectional structure of another embodiment of the sewage outlet.

[0054] Figure 15 Schematic diagram of the water flow direction during water production of another embodiment of the sewage outlet.

[0055] Figure 16 Schematic diagram of the water flow direction during flushing and discharging of another embodiment of the sewage outlet.

[0056] In the figure: 1. Outer shell; 2. Outer shell cover; 3. Connector; 4. Fixed bracket; 5. Clean water outlet; 6. Raw water inlet; 7. Sewage outlet; 8. Filter element; 9. Filter element head A; 10. Raw water inlet of the filter element; 11. Filter element head B; 12. Sewage outlet of the filter element; 13. Clean water outlet of the filter element; 14. Diversion pipe; 15. Inlet of the diversion pipe; 16. Outlet of the diversion pipe; 17. Perforated handle; 18. Seal ring A; 19. Seal ring B; 20. Seal ring C; 21. Filter element cover; 22. Sewage outlet of the filter element cover; 23. Raw water inlet of the filter element cover; 24. Horn guide head A; 25. Horn guide head B; 26. Horn guide head C. Detailed implementation manners

[0057] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0058] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0059] To make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below through the drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and do not limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0060] As Figures 1 to 11 shown, an internal pressure type filtering water purifier with a non-dismantling pipe includes a housing 1 and a housing cover 2 provided at one end of the housing 1, and the housing 1 and the housing cover 2 are connected together through a connecting member 3. A filtering assembly is provided inside the housing 1. A water purification port 5, a raw water port 6 and a sewage discharge port 7 are provided on the housing 1 at the end far from the housing cover 2. The water purification port 5, the raw water port 6 and the sewage discharge port 7 are communicated with the filtering assembly. The raw water port 6 and the sewage discharge port 7 on the housing 1 are concentric different-flow pipe structures. The two are concentric circles and are isolated from each other, and there will be no water mixing phenomenon. Secondly, it realizes that one part can have multiple different water flow functions at the same time.

[0061] When disassembling the filter component or inspecting the internal situation, in the prior art, it is necessary to disassemble the raw water inlet pipe, the purified water outlet pipe, the sewage outlet pipe, etc. However, for the present utility model, only the connecting piece 3 needs to be directly disassembled, and then the outer shell cover 2 is opened, and the filter component can be conveniently taken out; when installing or taking out the filter component or inspecting the internal situation, it is possible to facilitate the installation and removal of the filter component without the assistance of other tools and equipment and without using the raw water water pressure assistance, and it can better meet the use requirements.

[0062] As Figures 1 to 11 shown, the filter component includes a filter element 8, a diversion pipe 14, a perforated handle 17 and a filter element cover 21. A filter element 8 is arranged inside the outer shell 1, a diversion pipe 14 is fixed inside the filter element 8, a perforated handle 17 is fixed on the diversion pipe 14 near one end of the outer shell cover 2, and a filter element cover 21 is fixed on the filter element 8 at the other end far from the outer shell cover 2. A filter element cover sewage outlet 22 and a filter element cover raw water inlet 23 are arranged on the filter element cover 21. The filter element cover sewage outlet 22 and the filter element cover raw water inlet 23 on the filter element cover 21 form a concentric pipe structure, realizing a concentric different-flow pipe structure. One end of the filter element 8 is fixedly provided with a filter element head A9, and the other end of the filter element 8 is fixedly provided with a filter element head B11. The filter element cover raw water inlet 23 and the filter element cover sewage outlet 22 are of a concentric different-flow pipe structure. In this way, the two waterways of the filter element cover raw water inlet 23 and the filter element cover sewage outlet 22 are concentrated inside the filter element cover 21, which can not only achieve mutual isolation and sealing and prevent water leakage, but also realize that one part can have multiple different water flow functions at the same time. Specifically, a perforated handle 17 is arranged on the diversion pipe 14 at one end of the filter element 8 close to the filter element head A9, the other end of the filter element 8 is fixedly provided with a filter element head B11, and a filter element cover (21) is arranged on the filter element head B11.

[0063] Among them, as Figures 1 to 11 shown, a diversion pipe water inlet 15 is arranged on the diversion pipe 14 on one side close to the filter element cover raw water inlet 23. The diversion pipe water inlet 15 is connected to the filter element cover raw water inlet 23. A diversion pipe water outlet 16 is arranged on the diversion pipe 14 on one side close to the perforated handle 17. The diversion pipe water outlet 16 is connected to the perforated handle 17 (realizing the integration of the water flow function and the handle function). In this way, there is no interface on the outer shell cover 2, greatly reducing the production and manufacturing difficulty. Further explanation is that a diversion pipe 14 is arranged in the middle of the filter element 8, and the diversion pipe 14 is tightly fixed to the filter element head A9 and the filter element head B11 respectively. Further explanation is that the two ends of the diversion pipe 14 respectively extend by an appropriate length dimension compared with the plane of the filter element raw water inlet 10 and the plane of the filter element sewage outlet 12 (reference dimension: 30 - 300 mm).

[0064] Among them, as Figures 1 to 11As shown, a number of inflow perforations for water supply to flow in are provided at the raw water inlet 10 of the filter element. There is a certain distance (reference dimension: 30 - 300 mm) between the raw water inlet 10 of the filter element and the outer shell cover 2. A number of outflow perforations for water supply to flow out are provided at the sewage outlet 12 of the filter element. There is a certain distance (reference dimension: 30 - 300 mm) between the sewage outlet 12 of the filter element and the filter element cover 21.

[0065] Among them, as Figure 5 shown, a horn guide head A24 is provided at the assembly part of the sewage outlet 7 on the outer shell 1 and the filter element 8. The horn guide head A24 is used to guide the assembly orientation of the filter component, facilitating the accurate and rapid insertion of the raw water inlet 23 of the filter element cover into the raw water inlet 6 on the outer shell 1 and the accurate and rapid insertion of the sewage outlet 22 of the filter element cover into the inner port of the sewage outlet 7 on the outer shell 1.

[0066] The implementation scheme of the sewage outlet 7 of the utility model of the present application has the following alternative scheme (sewage outlet scheme 2, as Figure 14 shown):

[0067] The filter element cover 21 has a structure of the same cavity with different flow channels. The filter element cover 21 is provided with a raw water inlet 22 and a sewage outlet 23 of the filter element. The sewage outlet 23 of the filter element cover is on the side of the raw water inlet 22 of the filter element (non - concentric circle structure). There is an appropriate dimensional distance between the sewage outlet 23 of the filter element cover and the raw water inlet 22 of the filter element (reference dimension: 30 - 300 mm). Correspondingly, the sewage outlet 7 on the outer shell 1 is on the side of the raw water inlet 6 (non - concentric circle structure). There is an appropriate dimensional distance between the sewage outlet 7 and the raw water inlet 6 (reference dimension: 30 - 300 mm). The raw water inlet 23 of the filter element cover and the sewage outlet 22 of the filter element cover have a structure of the same cavity with different flow channels and are isolated from each other without water cross - flow, realizing that one part can have multiple different water flow functions at the same time. Further explanation is that both the outer shell 1 and the filter element cover 21 are provided with structures to prevent mis - installation of hole positions. The distance dimensions from the central axes of the clean water inlet 5 and the sewage outlet 7 on the outer shell 1 to the central axis of the outer shell 1 are inconsistent, and the dimensional structures of the horn guide head 25 and the horn guide head 26 are inconsistent, preventing mis - installation of the corresponding hole positions of the raw water inlet 23 of the filter element cover and the raw water inlet 6, and the sewage outlet 22 of the filter element cover and the sewage outlet 7 during the installation of the filter component. If the angle and position are mis - installed during the installation of the filter component, then the filter component cannot be installed.

[0068] Special note: If the raw water inlet 6 and the sewage outlet 7 are swapped in position, that is, the raw water inlet 6 is changed to the sewage outlet 7 and the sewage outlet 7 is changed to the raw water inlet 6, and the flow direction of the relevant water flow is opposite to the original scheme, then the water purifier can still work normally, and the present utility model is also applicable.

[0069] Among them, as Figures 1 to 11As shown, a diversion pipe 14 is fixed inside the filter element 8. Both ends of the diversion pipe 14 are open, and both ends of the diversion pipe 14 extend a certain length (reference dimension: 30 - 300 mm) beyond both ends of the filter element 8.

[0070] Among them, as Figures 1 to 11 shown, a circular convex ring is provided on the filter element head A 9. The circular convex ring is located between the outer shell 1 and the outer shell cover 2. The outer diameter of the circular convex ring is larger than the outer diameter of the outer shell 1. This is used to clamp the filter assembly to prevent the filter element head A9 of the filter assembly from completely sliding into the interior of the outer shell 1. The outer shell 1 and the outer shell cover 2 are fixedly connected together through a connecting member 3 and sealed by a sealing ring C20.

[0071] Among them, as Figures 1 to 11 shown, the filter element cover 21 is tightly assembled, fixed and sealed with the filter element head B11, usually by means of glue or a sealing ring.

[0072] Among them, the diversion pipe water inlet 15 and the original water port 23 of the filter element cover are tightly assembled and sealed, usually by means of glue or a sealing ring. The diversion pipe water outlet 16 and the perforated handle 17 are tightly assembled and firmly fixed (no need for sealing).

[0073] Among them, a convex step ring is provided at the inner edge of the opening at one end of the outer shell 1 close to the outer shell cover 2. This setting can assist in fixing the filter element head A9.

[0074] Among them, the filter element 8 can be an ultrafiltration membrane, and the ultrafiltration membrane can adopt a PVC internal pressure ultrafiltration membrane.

[0075] As Figures 1 to 11 shown, the sewage outlet 22 of the filter element cover is communicated with the sewage outlet 7 on the outer shell 1 and is sealed and connected by a sealing ring B19. The original water port 23 of the filter element cover is communicated with the original water port 6 on the outer shell 1 and is sealed and connected by a sealing ring A18. Through the settings of the sealing ring A18 and the sealing ring B19, the water purification port 5, the original water port 6 and the sewage outlet 7 do not interfere with each other.

[0076] Among them, as Figures 1 to 11 shown, the filter element head B11 adopts a single-sided asymmetric sealing structure. There is a certain distance between the filter element head B11 and the outer shell 1, and there is no sealing structure, that is, the filter element head B11 does not use a sealing ring, and the filter element head B11 does not directly contact the inner wall of the outer shell 1. And the filter element cover 21 is tightly assembled, fixed and sealed with the filter element head B11, sealed with glue or a sealing ring.

[0077] As Figures 1 to 11As shown, the outer diameter dimensions of the sealing ring A18 at the original water inlet 23 of the filter element cover and the sealing ring B19 at the sewage outlet 22 of the filter element cover are both much smaller than the outer diameter dimension of the sealing ring C20 (reference outer diameter dimension ratio: the outer diameter dimensions of the sealing ring A18 and the sealing ring B19 are 15 - 30% of the outer diameter dimension of the sealing ring C20). This realizes a single-sided asymmetric sealing structure for the filter assembly. The advantages of this structure are as follows:

[0078] First, it realizes that the clean water outlet 5 can be set at any position on the outer shell 1 without affecting the normal output of clean water;

[0079] Second, it avoids the frictional resistance between the filter element head B11 and the outer shell 1. Since there is no sealing ring on the filter element head B11 of the filter assembly and there is a certain distance between the filter element head B11 and the outer shell 1 (reference dimension: 30 - 300 mm), it avoids the frictional resistance caused by the close contact between the filter element head B11 and the inner wall of the outer shell 1;

[0080] Third, it reduces the contact area and frictional resistance between the sealing ring and the outer shell 1. Since the outer diameters of the sealing ring A18 and the sealing ring B19 are both much smaller than the outer diameter of the sealing ring C (reference outer diameter dimension ratio: the outer diameter dimensions of the sealing ring A18 and the sealing ring B19 are 15 - 30% of the outer diameter dimension of the sealing ring C20), it reduces the contact area between the sealing ring A18 and the sealing ring B19 and the outer shell 1, thus realizing the reduction of the force required to remove the filter assembly;

[0081] Fourth, the interface dimension lengths of the original water inlet 6 and the sewage outlet 7 of the outer shell 1 are much shorter than the total length of the outer shell 1. Only by taking out the filter assembly a short distance can the filter assembly be taken out, which is convenient for disassembly;

[0082] Fifth, it realizes that the whole machine only needs one connecting piece 3 (clamp) and one outer shell cover 2 (end cover), and the structure is simpler.

[0083] As Figures 1 to 11 shown, the connecting piece 3 uses a clamp, which not only has a wide source, is easy to implement, but also is convenient to connect the outer shell 1 and the outer shell cover 2 together.

[0084] As Figures 1 to 11 shown, a fixing frame 4 for supporting the outer shell 1 is provided on the outer shell 1, and there are multiple fixing frames 4. Through two fixing frames 4, it is beneficial to fix the outer shell 1 on the required fixed objects, such as the ground, the wall, etc.

[0085] As Figures 1 to 11 shown, a clean water valve is installed on the connecting pipe of the clean water outlet 5, a raw water valve is installed on the connecting pipe of the original water inlet 6, and a sewage valve is installed on the connecting pipe of the sewage outlet 7.

[0086] As Figures 1 to 11As shown, when assembling the present utility model, first insert the filter assembly into the housing 1. During this operation process, the following operations are completed simultaneously: the original water inlet 23 of the filter element cover is inserted into the original water inlet 6, and the sewage discharge port 22 of the filter element cover is inserted into the sewage discharge port 7. Then install the housing cover 2. After adjusting the position of the sealing ring C20, install the connecting piece 3, and then tighten the connecting piece 3.

[0087] Special note: If the positions of the original water inlet 6 and the sewage discharge port 7 are swapped, that is, the original water inlet 6 is changed to the sewage discharge port 7 and the sewage discharge port 7 is changed to the original water inlet 6, and the flow direction of the relevant water flow is opposite to the original scheme, then the water purifier can still work normally, and the present utility model is also applicable.

[0088] As Figure 12 and Figure 15 shown, when the present utility model produces water (at this time, the raw water valve is open, the purified water valve is open, and the sewage discharge valve is closed), the raw water first enters the diversion pipe 14 from the original water inlet 6, then passes through the perforated handle 17, and then enters the filter element 8 from the original water inlet 10 of the filter element and is filtered. The filtered purified water flows out from the purified water outlet 13 of the filter element, and then flows out from the purified water outlet 5.

[0089] As Figure 13 and Figure 16 shown, when the present utility model flushes and discharges sewage (at this time, the raw water valve is open, the purified water valve is closed, and the sewage discharge valve is open), the raw water first enters the diversion pipe 14 from the original water inlet 6, then passes through the perforated handle 17, and then enters the filter element 8 from the original water inlet 10 of the filter element. The raw water comes out from the sewage discharge port 12 of the filter element, takes away the dirty sewage, and discharges the dirty sewage from the sewage discharge port 22 of the filter element cover and the sewage discharge port 7.

[0090] When disassembling the filter assembly of the present utility model or inspecting the internal situation of the water purifier, loosen the connecting piece 3, and then remove the housing cover 2 and take out the filter assembly. Compared with the prior art, there is no need to disassemble the original water inlet pipe, the purified water inlet pipe and the sewage discharge pipe, nor is it necessary to rely on the raw water pressure to take out the filter assembly. Secondly, there is no need for other tools and equipment to assist in the operation, and the operation is simpler and more convenient.

[0091] When disassembling the filter component or inspecting the interior of the water purifier, this utility model does not require the disassembly of the raw water inlet pipe, purified water outlet pipe, and sewage outlet pipe. By directly disassembling the connecting piece and opening the outer shell cover 2, it is very convenient to take out the filter component. Additionally, when installing and removing the filter component of the internal pressure type filter water purifier or inspecting the interior of the water purifier, it is possible to facilitate the installation and removal of the filter component without the assistance of other tools or equipment and without relying on the raw water pressure. This has the following advantages for production enterprises and end users: The structure is simple and reasonable, resulting in low manufacturing costs, and the operation is fast and convenient, saving time and effort, thus saving labor hours, improving work efficiency, and saving after-sales service costs; the skill requirements for the installation, disassembly, and maintenance of the water purifier are not high, which is conducive to the popularization and promotion of the water purifier; it can meet the user's requirements for the convenience of installing and maintaining the water purifier and cost savings; it has high practical value and can create good economic value.

[0092] The key points and innovations of this utility model are as follows:

[0093] First, this utility model is suitable for filter water purifiers with an internal pressure type filter guide pipe structure;

[0094] Second, a concentric different flow pipe structure (alternative: same cavity different flow pipe structure), which is only related to the raw water inlet 6 and the sewage outlet 7 (concentric or same cavity), and has nothing to do with the purified water outlet 5. The combination of the above two structures enables a single part to have multiple different water flow functions at the same time, and also enables there to be no interfaces on the outer shell cover 2 of the internal pressure type filter water purifier. The positions of the raw water inlet 6 and the sewage outlet 7 are set on the same side at the other end far from the connecting piece 3 (clamp) and the outer shell cover 2, achieving the requirement that when disassembling and removing the filter component, it is not necessary to disassemble the raw water inlet pipe, sewage outlet pipe, and purified water outlet pipe;

[0095] Third, a single-sided asymmetric sealing structure for the filter component, which realizes the function of unidirectional removal of the filter component of the internal pressure type filter water purifier. The whole internal pressure type filter water purifier only requires one connecting piece 3 (clamp) and one outer shell cover 2, and the purified water outlet 5 is set on the same side at the other end far from the connecting piece 3 (clamp) and the outer shell cover 2;

[0096] Fourth, a perforated handle 17 structure. The combination of the perforated handle 17 structure and the guide pipe 14 realizes the integration of the water flow function and the handle function.

[0097] The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part all adopt conventional means such as clamps that are mature in the existing technology, and no specific description will be made here.

[0098] Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts and by making some non-essential improvements and adjustments to the present utility model according to the content of the above-mentioned utility model all fall within the scope of protection of the present utility model.

Claims

1. An internal pressure filter water purifier without pipe removal, characterized in that: The invention comprises a shell (1) and a shell cover (2) arranged at one end of the shell (1), wherein the shell (1) and the shell cover (2) are connected together via a connecting piece (3), a filter assembly is arranged inside the shell (1), a clean water inlet (5), a raw water inlet (6) and a sewage outlet (7) are arranged on the shell (1) at an end away from the shell cover (2), the clean water inlet (5), the raw water inlet (6) and the sewage outlet (7) are connected to the filter assembly, and the filter assembly comprises a filter element (8), a flow guide tube (14), a perforated handle (17) and a filter element cover (21), a filter element (8) is arranged inside the shell (1), a flow guide tube (14) is fixed inside the filter element (8), and a filter element cover (21) is arranged near one end of the shell cover (2) A perforated handle (17) is fixed on the flow guide tube (14); a filter cover (21) is fixed on the filter element (8) at the other end away from the outer shell cover (2); a filter cover sewage outlet (22) and a filter cover raw water outlet (23) are provided on the filter cover (21); the filter cover sewage outlet (22) and the filter cover raw water outlet (23) on the filter cover (21) form a concentric circular pipeline structure; a filter element head A (9) is fixedly provided on one end of the filter element (8); the perforated handle (17) is provided on the flow guide tube (14) at one end of the filter element (8) close to the filter element head A (9); a filter element head B (11) is fixedly provided on the other end of the filter element (8); and the filter cover (21) is provided on the filter element head B (11).

2. The internal pressure filter water purifier without pipe disassembly as claimed in claim 1, characterized in that: A flow guide pipe water inlet (15) is provided on the flow guide pipe (14) near the original water inlet (23) of the filter element cover, and the flow guide pipe water inlet (15) is connected to the original water inlet (23) of the filter element cover; a flow guide pipe water outlet (16) is provided on the flow guide pipe (14) near the perforated handle (17), and the flow guide pipe water outlet (16) is connected to the perforated handle (17).

3. The internal pressure filter water purifier without pipe disassembly as claimed in claim 1, characterized in that: One end of the filter element (8) is provided with a plurality of filter element raw water inlets (10), the other end of the filter element (8) is provided with a plurality of filter element sewage outlets (12), and the outer surface of the filter element (8) is provided with a plurality of filter element clean water outlets (13).

4. The internal pressure filter water purifier without pipe disassembly as claimed in claim 3, characterized in that: The filter element raw water inlet (10) is provided with a plurality of inflow perforations for water to flow in, and there is a distance between the filter element raw water inlet (10) and the outer shell cover (2); the filter element sewage outlet (12) is provided with a plurality of outflow perforations for water to flow out, and there is a distance between the filter element sewage outlet (12) and the filter element cover (21).

5. The internal pressure filter water purifier without pipe disassembly as claimed in claim 1, characterized in that: A horn guide head A (24) is provided at the assembly position of the sewage outlet (7) on the housing (1) and the filter element (8).

6. The internal pressure filter water purifier without pipe disassembly as claimed in claim 1, characterized in that: The filter element cover (21) is a concentric non-uniform flow pipe structure, and the filter element cover raw water inlet (23) and the filter element cover sewage outlet (22) are concentric circle structures.

7. The internal pressure filter water purifier without pipe disassembly as claimed in claim 1, characterized in that: The filter element head A (9) is provided with a circular convex ring, the circular convex ring is located between the outer shell (1) and the outer shell cover (2), and the outer diameter of the circular convex ring is larger than the outer diameter of the outer shell (1).

8. The internal pressure filter water purifier without pipe disassembly as claimed in claim 7, characterized in that: A sealing ring C (20) is arranged on the circular convex ring.

9. The internal pressure filter water purifier without pipe disassembly as claimed in claim 1, characterized in that: The outer shell (1) is provided with a fixing frame (4) for supporting the outer shell (1).

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